Trolley-wire holder.



PATENTED DEC. 5, 1905.

F. M. ZIMMERMANC TROLLEY WIRE HOLDER APPLICATION FILED 14113.21, 1905.

,Zkweizzor,

UNITED STATES PATENT OFFICE.

TROLLEY-WIRE HOLDER.

Specification of Letters Patent.

Registered Dec. 5, 1905.

Application filed March 21,1905. Serial No. 251,218.

To all whom it may concern.-

Be it known that I, FRANK M. ZIMMERMAN, a citizen of the United States, residing in Aurora, Kane county, Illinois, have invented certain new and useful Improvements in the Construction of Trolley-VVire Holders, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof, and in which- Figure 1 shows the main part or body of my said device in central transverse section, the wire-clamp therein being shown in side elevation. Fig. 2 shows the socket of the main part in the same position and condition as it is shown in Fig. 1, but with the stem of the wire-clamp removed from said socket. Fig. 3 shows the main or body part at right angles to the plane of that in which Figs. 1 and 2 are shown, but also in central vertical section and with the upper part of the stem of the wire-clamp in place, whereby is shown the construction and operation of the parts with one another. Fig. 1 shows a top view of the upper end of the stem of the wireclamp. Fig. 5 shows a section of Fig. 2 on plane 5 5, Fig. 2.

Like reference-letters denote like parts.

The object of my invention is to improve the construction of the connected parts of a trolley-wire holder and to simplify and to reduce the number of parts of such a mechanism and to both make shorter work in putting said parts to place and also to increase the security of their position when in place. To

attain said desirable ends, I construct my said new device in substantially the following manner, namely:

Into the armed socket 6 between its two arms a are placed opposed ledges 0 near its top. The stem (Z of the wire-clamp e is provided with opposed flanges f at its top. Said flanges and ledges are so placed that when the parts a and e are in their normal positions c'. 0., at right angles to each otherthe flanges f shall rest on the ledges c of the socket. It is evident that said parts will become inseparable when the trolley-wire is secured in its clamp 0, because the parts cannot then turn on each other, and there being no screws or other such connecting mechanism the parts are held together with absolute reliable security and can only be separated by removing the trolley-wire from its clamp or the'supporting-wire from its connection. The hole 9 serves to both lighten and to secure more thorough conversion into malleability of the stem. The flanges f at the top of the stem (Z are necessarily directly opposite each other. The socket and stem are formed so that only the upper and lower ends of the socket engage the stem, the intermediate parts being chambered for the purpose of avoiding tooling for assembling.

What I claim is- In a trolley-wire holder, the combination with a socket whereof the bore is cylindrical and contracted at its mouth and provided with ledges in its enlarged chamber, of a wireholder stem having an enlarged lower part fitted to said mouth and an upper and flanged portion connected to said ledges.

FRANK M. ZIMMERMAN.

WVitnesses:

M. ZIMMERMAN, CHARLOTTE MITCHELL. 

